Juno Regional Prospecting Prospect Evaluation Of Geochemical Anomaly Analysis, In The Gangdese Belt

Geochemical exploration is an effective technical methods to find metal deposit. The analysis of geochemical data and the identification of anomalies are the core and key of geochemical prospecting.The research area is located in the west part of Gangdese metallogenic belt, Tibet. Its natural landscape is western high and cold mountain area. A known large deposit, Zhunuo porphyry copper-gold deposit and some mines or mineralized points,is located in this area. This paper will be based on the 1:50000 stream sediments geochemical data with the application of traditional method (statistical methods), fractal content-area method, and sub zone lining value accumulation method to research and compare single element anomalies in this area. On the basis of the front, combination of 1:10000 soil geochemical survey regional prospecting prospect is analyzed.Traditional methods to compare framed high value anomaly, simple and rapid with known Juno porphyry copper deposit has good composite, but in a larger area adopts unified background value, easy to miss some valuable weak anomalies (such as Tang ge copper point). Area line value accumulation method through the partition processing and using traditional methods to analyze the way can be a very good solve the problem of the anomaly extraction under different background, at the same time of give attention to both high background anomaly extraction, in the low background area also makes weak anomaly to further strengthen, such as the weak anomaly near o’donoghue highlighting. Fractal content-area of law in effect is not ideal in this area. Comprehensive analysis think, within the scope of the study area, the traditional method and sub zone lining value filtering method used at the same time, it is better to verify each other.By the method of factor score framed Cu-Mo-W-Bi, Ag-Pb-Zn combination, and application of the sub-area line delineated by metallogenic type value accumulation of Cu-Au-Mo-Ag and Ag-Pb-Zn composite anomalies are similar, but the latter strengthens the closely associated with porphyry copper metallogenic system of abnormal (such as Tang ge copper anomaly "from nonexistence to pass into existence"), at the same time weakening those who has nothing to do with the ore geochemical anomalies.Complexity "elements" of anomalies can more intuitive than the traditional methods of display elements in the study area in the regional characteristics of the complex. Element complex strong area Mainly located in the southwest Junuo-Dong shibu, Lejianmaiguo in eastern area, central area Tange-Yamu Gasongduo and Longma village in northern region., etc.Area line value accumulation method is used and complexity "elements" and combined with the feature of regional geological characteristics,geophysical and remote sensing delineated the 16 comprehensive anomaly area, including one class A comprehensive exception and fifteen class B comprehensive exception, and then classified the abnormality and evaluated comprehensive prospecting potential. On the basis of in the previous, chosed three comprehensive anomaly,have done the 1:10000 soil geochemical survey work, to provide the important basis and reference.for Juno areas exploration...